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Rain washed away Delhi-NCR’s pollution: Sunday was the cleanest day of the year, Greater Noida’s air was the cleanest

January 10, 2022
43,392 2 minutes read
Delhi

Delhi-NCR:The ongoing rain since last week has brought down the pollution meter in Delhi-NCR below 100. The residents of Greater Noida breathed the cleanest air for the first time in a year with an AQI of 48. At the same time, the air of other cities including Delhi has been recorded in the satisfactory category. Air quality monitoring agencies have forecast that the relief from the effects of rain will continue till Monday. Thereafter, the air quality may slip to the average category.

According to the air standards organization SAFAR, due to the continuing rain since Friday, the pollutants present in the air came to the surface of the earth along with the raindrops. This cleared the atmosphere and reduced the air quality figures. In the last 24 hours, the level of PM 10 in the air was 52 and the level of PM 2.5 was recorded at 32 micrograms per cubic meter. Generally, the level of PM 10 is less than 100 and the level of PM 2.5 is less than 60 is considered safe. SAFAR is forecast that the air quality will remain in the satisfactory category for the next 24 hours. But, from Tuesday, due to less wind speed, the AQI may reach the average category.

According to the Indian Institute of Tropical Meteorology (IITM), the wind speed was recorded at four to eight kmph, mixing height 900 meters and ventilation index of four thousand square meters per second on Sunday. On Monday, the wind speed of four to eight kmph, mixing height will decrease to 850 meters and ventilation index may increase to 4300 square meters per second. At the same time, on Tuesday, the wind speed may decrease to 4 km per hour, the mixing height will increase to 1200 meters and the ventilation index will decrease to 1900 square meters per second. Decreasing ventilation index will have an impact on air quality.

According to the Central Pollution Control Board (CPCB), Delhi’s AQI declined by 22 points to 69 on Sunday. A day before this it was 91 records. At the same time, Delhi-NCR has the cleanest air with an AQI of 48 in Greater Noida. After this, the situation was better with Noida’s AQI of 60. It is worth noting that for the first time in the new year, the level of AQI has come down so much and more improvement has been registered in the air quality. Earlier, AQI was continuously being recorded in poor to very poor category.

In this way the air of Delhi-NCR became clear

Due to the activity of Western Disturbance in Delhi-NCR, the rains started from Friday. This resulted in an improvement in the air quality. This was the reason that in the last three days, the AQI of Delhi-NCR fell from more than 200 figures to below 100 and people breathed a sigh of relief in the clean air.

January 10, 2022
43,392 2 minutes read
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